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Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
Published on: January 3, 2018
A Universal Method for the Synthesis of new Heterocyclic Systems: Pyrimido[2,1-f][1,2,4]triazines
Samvel N Sirakanyan1, Domenico Spinelli2, Athina Geronikaki3
1Scientific Technological Center of Organic and Pharmaceutical Chemistry of National Academy of Science of Republic of Armenia, Institute of Fine Organic Chemistry of A. L. Mnjoyan, Armenia, 0014, Yerevan, Ave. Azatutyan 26.
Researchers synthesized novel pyrimido[2,1-f][1,2,4]triazines through a four-step process. This study introduces unique heterocyclic systems with potential applications in medicinal chemistry.
Area of Science:
- Organic Chemistry
- Medicinal Chemistry
- Heterocyclic Chemistry
Background:
- Thieno[2,3-b]pyridines are important scaffolds in medicinal chemistry.
- Developing novel heterocyclic systems is crucial for drug discovery.
Purpose of the Study:
- To synthesize new pyrimido[2,1-f][1,2,4]triazine derivatives.
- To explore the creation of novel fused heterocyclic systems.
Main Methods:
- Acylation of amino esters of thieno[2,3-b]pyridines.
- Reaction with various amines and cyclization using hydrazine hydrate.
- Further cyclization to form pyrido[3'',2'':4',5']thieno[3',2':4,5]pyrimido[2,1-f][1,2,4]triazines.
Main Results:
- Successfully synthesized novel aminomethyl derivatives of thieno[3,2-d]pyrimidines.
- Developed a four-step synthesis for unique pyrido[3'',2'':4',5']thieno[3',2':4,5]pyrimido[2,1-f][1,2,4]triazine systems.
- The final fused ring system represents a new heterocyclic structure.
Conclusions:
- The study established a synthetic route to previously unknown heterocyclic compounds.
- The synthesized compounds possess a unique fused ring structure.
- These novel systems hold potential for future pharmaceutical research.
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